Figure - Operando monitoring of single-particle kinetic state-of-charge heterogeneities and cracking in high-rate Li-ion anodes (IMAGE)

University of Cambridge

Figure - Operando monitoring of single-particle kinetic state-of-charge heterogeneities and cracking in high-rate Li-ion anodes

Caption

a Optical images showing crack formation in a single rod-shaped particle of Nb14W3O¬44. Black dashed lines highlight Li-ion fronts propagating from the crack. b Optical image of a fractured particle, following 20 charge-discharge cycles. The more brightly scattering fragment has a higher Li-content, suggesting it has become inactive. Scale bars are 5 μm. c Extent of particle fracture in a fixed population of active particles, over 15 charge-discharge cycles.

Credit

Research Team, Cavendish Laboratory, Department of Physics, University of Cambridge

Usage Restrictions

In context of the article

License

Original content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.